Physics-
General
Easy
Question
In earthquakes ....... sounds are produced
- Ultrasounds
- Infrasonic sounds
- Audible sounds
- None
The correct answer is: Infrasonic sounds
Related Questions to study
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The frequency of a sound source is 10Hz. How many times does it vibrate in a minute ?
The frequency of a sound source is 10Hz. How many times does it vibrate in a minute ?
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When a wave is travelling from one medium to another which of the following changes
When a wave is travelling from one medium to another which of the following changes
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Atmosphere is transparent to ............. radiations
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In the propagation light wave, the direction of propagation of wave is perpendicular to....
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Ripples on surface of water are:
Ripples on surface of water are:
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We cannot see .......
We cannot see .......
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Two identical balls are having momentums in the ratio 7 : 8. Find the ratio of their velocities
Two identical balls are having momentums in the ratio 7 : 8. Find the ratio of their velocities
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A boy of mass 20kg went to first floor of a building having 17 steps each of 20cm wide and 20cm height. Find the P. E of the boy in first floor
A boy of mass 20kg went to first floor of a building having 17 steps each of 20cm wide and 20cm height. Find the P. E of the boy in first floor
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A thin metallic spherical shell carries a charge Q on it. A point charge q is placed at the centre of the shell and another charge q1 is placed outside it as shown in fig. All the three charges are positive. q1 q Q The force on the charge at the centre is
A thin metallic spherical shell carries a charge Q on it. A point charge q is placed at the centre of the shell and another charge q1 is placed outside it as shown in fig. All the three charges are positive. q1 q Q The force on the charge at the centre is
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A simple pendulum of time period T is suspended above a large horizontal metal sheet with uniformly distributed positive charge. If the bob is given some negative charge, its time period of oscillation will be
A simple pendulum of time period T is suspended above a large horizontal metal sheet with uniformly distributed positive charge. If the bob is given some negative charge, its time period of oscillation will be
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A positive point charge Q is brought near an isolated metal cube. Which of the following is correct?
A positive point charge Q is brought near an isolated metal cube. Which of the following is correct?
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Three charges –q1 + q2 and –q3 are placed as shown in figure. The x-component of the force on –q1 is proportional to
Three charges –q1 + q2 and –q3 are placed as shown in figure. The x-component of the force on –q1 is proportional to
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Three charges are placed at the vertices of an equilateral triangle of side 'a' as shown in fig. The force experienced by the charge placed at the vertex A in a direction normal to BC is :
Three charges are placed at the vertices of an equilateral triangle of side 'a' as shown in fig. The force experienced by the charge placed at the vertex A in a direction normal to BC is :
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In the basic CsCl crystal structure, 
and 
ions are arranged in a bcc configuration as shown in fig. The net electrostatic force exerted by the eight ions on the ion is :
In the basic CsCl crystal structure, and ions are arranged in a bcc configuration as shown in fig. The net electrostatic force exerted by the eight ions on the ion is :
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Fig. Show two coils A and B placed parallel to each other at a very small distance. Coil A is connected to an A.C.. supply. G. is very sensitive galvanometer. When the key is closed :
Fig. Show two coils A and B placed parallel to each other at a very small distance. Coil A is connected to an A.C.. supply. G. is very sensitive galvanometer. When the key is closed :
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